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NTIS 바로가기한국지진공학회논문집 = Journal of the Earthquake Engineering Society of Korea, v.24 no.1, 2020년, pp.19 - 27
이창석 (한양대학교 건축공학과) , 박이슬 (한양대학교 건축공학과 대학원) , 한상환 (한양대학교 건축공학과)
Reinforced concrete (RC) buildings built in the 1980s are vulnerable to seismic behavior because they were designed without any consideration of seismic loads. These buildings have widely spaced transverse reinforcements and a short lap splice length of longitudinal reinforcements, which makes them ...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
1980년대 이전에 지어진 철근콘크리트 (RC) 건물의 특징은? | 1980년대 이전에 지어진 철근콘크리트 (RC) 건물 (이하, 비연성 RC 건물)은 중력하중만 고려하여 설계되었으며 현행 내진설계 기준에 맞지 않는 철근 상세를 갖고있다 [1-3]. 특히 비연성 RC건물의 기둥은 내진 거동에 취약한 문제점을 가지고 있다 [4-8]: (1) 횡보강근의 넓은 간격, (2) 횡보강근의 90°갈고리, (3) 잠재적 소성 힌지 영역에 위치한 겹침이음, (4) 종방향 철근의 짧은 이음 길이 등이 이에 해당한다. | |
비연성 RC건물의 기둥이 가지는 취약점은? | 1980년대 이전에 지어진 철근콘크리트 (RC) 건물 (이하, 비연성 RC 건물)은 중력하중만 고려하여 설계되었으며 현행 내진설계 기준에 맞지 않는 철근 상세를 갖고있다 [1-3]. 특히 비연성 RC건물의 기둥은 내진 거동에 취약한 문제점을 가지고 있다 [4-8]: (1) 횡보강근의 넓은 간격, (2) 횡보강근의 90°갈고리, (3) 잠재적 소성 힌지 영역에 위치한 겹침이음, (4) 종방향 철근의 짧은 이음 길이 등이 이에 해당한다. | |
비연성 RC건물의 기둥이 갖는 내진 거동에 취약한 문제점으로 지진 발생시 발생할 수 있는 영향은? | 따라서 지진 발생 시 철근의 짧은 겹침이음을 갖는 RC 기둥은 종방향 철근의 조기항복으로 인해 전단 및 휨 강도까지 도달 하기 전에 겹침이음 파괴 가 발생할 수 있다 [9, 10]. |
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